Pale-billed sicklebill Drepanornis bruijnii

A large, long-billed bird of lowland forest. Brown upperparts with black head and grayish facial skin behind the eye. Note the curved, pale bill. Male has a black throat, sides and two small, hornlike tufts on the head. Female has pale underparts with dark barring. Similar to female Twelve-wired Bird-of-Paradise and Magnificent Riflebird, but female Pale-billed Sicklebill has a longer, thinner, more curved bill. One of several vocalizations, a descending series of low whistles, reminiscent of Common Potoo.